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Best estimate method and safety analysis II

Authors
Journal
Reliability Engineering & System Safety
0951-8320
Publisher
Elsevier
Publication Date
Volume
91
Issue
2
Identifiers
DOI: 10.1016/j.ress.2005.01.006
Keywords
  • Safety Analysis
  • Best Estimate Method
  • Correlation Coefficient
  • Correlation Ratio
  • Tolerance Region

Abstract

Abstract We regard the safety analysis models as non-linear input–output maps. We assume random input and perform a statistical analysis of the output variables, define statistical test functions to decide whether two outputs are correlated, whether they are linearly dependent or there is a non-linear relationship between them. The methodology is applied to ATHLET calculations and we show chaotic behavior to occur in a domain of the investigated time interval. The time dependence of the upper tolerance region for two strongly correlated output variables is determined.

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